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REPORT ON ZOOLOGY, MDCCCXLII : 
with simple claws, all American), Cyllodes (Strong, ater, Hbt., five 
species), Cychramus, Kug. (Sphcerid. luteum, F., three species), Am- 
phicrossus (Nit. ciliata, 01. Enc., three species), Pallodes (Strong, 
annulifer, HtFg., Lap., four species), Oxycnemus (one new species from 
Brazil), Triacanus (Nit. apicalis, Er., in Meyens Beise) ; the last three 
genera are distinguished by elongated and narrow hinder tarsi. — 5th 
Group, Ipince, difiering from the Nitidulince by the concealed labrum ; 
containing three genera : Cryptarcha, Shuch. (N. strigata, F., ten 
species), Ips (nine species), and Rhizophagus, Hbt. (one new species from 
North America). So far, with the exception of the genera Meligethes 
and Rhizophagus, the species of the Berlin collection are quoted, and 
the new ones described (exclusive of those of Madagascar, in consequence 
of King’s labouring at the fauna of that island) : — The 6th Group, Tro- 
gositince, is only slightly mentioned ; it ditfers from the former in the 
formation of the tarsi, in which the first joint is the shortest, and often 
scarcely observable. According to the general opinion, a single maxillary 
lobe only has also been ascribed to this group ; but later investigation 
has convinced me, that the inner one, which, in groups 2-5, is alone 
present, is here so far back, and connected with the outer, that it is 
usually scarcely to be observed. I shall attempt soon to fix the genera 
of this group ; but have here to remark, that the Peltides (Peltis and 
Thymalus, but not Colobicus) still belong to the family of the Nitidu- 
larice, but stand so near to the Trogositince, that they can hardly be 
separated from them as a peculiar group. 
Blanchard has described a pretty considerable number of new species 
of NitidularicB, in D’Orbigny’s Voy. d. TAmer. Mer ; but which, for 
the most part, remain doubtful, on account of their undefined generic 
marks, and insufficient descriptions, in which the most essential charac- 
teristics are passed over ; on which account, I can only mention the spe- 
cies by name, without venturing to express an opinion to which of the 
genera, recognized by me, they belong : Ips. ehenina, BL, from Bolivia ; 
Nitidula villosa, BL, ibid. ; N. nigro-maculata, BL, ib. (probably a 
Lobiopa, but it is impossible to fix the species) ; N. lata, BL, ib. ; 
N. brevipennis, from Peru ; N. pallens, BL, from Corrientes ; Strongy- 
lus M-rubrum, BrulL, from Bolivia (a beautiful Camptodes, allied to 
my C. phaleratus) ; Str. tristis, Lap., from Brazil (is Camptod. scutella- 
tus, Sphcerid. scutell., Sturm.) ; Str. nigritus, Lap., from Monte Video 
(appears identical with my Campt. melanarius) ; Str. humeralis, BrulL, 
from Corrientes (a better defined Camptodes) ; Str. thoracicus, Lap., 
from Chiquitos, in Bolivia (doubtful) ; Str. melanurus, BL, in Bolivia, 
caught on the mimosa and other flowers (doubtful) ; Str. villosus, BL, 
from Moxos in Bolivia (apparently a Pocadius). 
Histeres. — Aub^ has described three new European species of 
Abrceus (Ann. d. 1. Soc. Ent. d. Fr. xi. p. 231) ; A. atomarius, caught 
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